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Normalization unit 3

Authored by Jananee V

Computers

University

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Normalization unit 3
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35 questions

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1.

FILL IN THE BLANK QUESTION

1 min • 1 pt

When we normalize a relationship, we decompose the relation. The decomposition should satisfy ........................................ , ..................................

2.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Problems in Relational Data Model without normalization are :

Anomalies

Information Redundancy

None of the above

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

"Constraint between two attributes or two sets of attributes."


The above statement is referring to :

Functional Dependecies

Transitive Dependencies

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following statements fully describes data in 2NF:

When any repeating fields have been removed and the table is given a primary key

When all repeating entries of data are removed and the fields in each table are directly related to the primary key and no fields are present that are not related to each other

When all the fields in each table are directly related to the primary key

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Anomalies is Errors or inconsistence that may result when a user attempts to update a table that contains redundant data.

True

False

6.

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is a foreign key?

A unique identifier in a database

A primary key of one table that appears in another table

A field that should not be in a table and needs removing

7.

MULTIPLE SELECT QUESTION

30 sec • 2 pts

THESE ARE THE TWO TERMINOLOGIES FOR ROW

RECORD

FIELD

FILE

TUPLE

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